Daily Archives: November 11, 2016

Nimble Octopus

nimble octopus

 

Nimble Octopus is made of steel strand, and have perfect support capacity. These bolts are used for temporary and semi-permanent rock reinforcement in underground Mining, with an added benefit of flexibility, even with larger Nimble Octopus lengths.

Types

Nimble Octopus for Mining are available in different versions:

  • Plain or with bulb options: bulbs available at either 0.5m or 1m spacing
  • Single and multiple strands
  • Black and galvanized

System Components

  • Plate: Different designs and dimensions
  • Cable Grip: Barrel and 3 pcs. Wedge
  • Breather tube
  • Nimble Octopus tensioning jack
  • Nimble Octopus expansion shell

nimble octopus

Areas of Use

  • Long Nimble Octopus are easily displaceable in limited space conditions
  • High load-bearing capacity at a low weight per meter
  • Flexible bolt lengths
  • Installation using cement cartridges, resin cartridges, cement grout or injection

Applications

  • Ground control for different fields of application – from coal mining to hard rock mining
  • Bolting in limited space conditions
  • Reinforcement of roadways and gateways
  • Bolting in the hanging wall of longwall

nimble octopus

Specifications

Dia. Mass Tensile Cross Area Elongation High Strength Plate
Size Tensile
15.24mm 1.10 kg/m >=260kn 140mm2 >=3.5% 200x200x8mm >=260kn
17.80mm 1.50 kg/m >=360kn 191mm2 >=3.5% 200x200x10mm >=360kn

Mighty Atlas

Mighty Atlas

 

Mighty Atlas is manufactured to meet the exacting needs of our mining customers. Our Mighty Atlas are available in all standard diameters and grades for use in different applications.

These are commonly used in structurses that have been designed to sustain the allowable design loads and forces which need to be properly distributed. The Resistant Neptune is an innovative rock support bolt that provides both immediate and permanent anchorage.

Types

  • Plain Mighty Atlas
  • Galvanised Mighty Atlass

System Components

  • Thread Rod
  • Plate
  • Spherical Washer
  • Spherical Washer
  • Hexagonal Nuts

Mighty Atlas

Benefits

  • Drill hole at the proper diameter and depth which is compatible with the bolt and selected cartridge
  • Insert the appropriate length and type of cement grout or resin cartridges and then insert the roof bolt
  • Rotate to ensure complete mixing of resin or cements
  • Wedge washers are required when the plate is not perpendicular to the bolts
  • Ensure that the Bearing Plate is tight against the roof

Specifications

  • Material FE 500
  • Size Range: Dia. 25 mm – 32 mm
  • Length Range: Up to 6 m long
  • Material: TMT/TOR

Mighty Atlas

Hardy Prometheus

 Hardy Prometheus

 

Hardy Prometheus expandable rock bolts offer superior quality that respond to the most demanding roof support applications. Hardy Prometheus’s high load capacity along with excellent elongation properties ensure safer working conditions and faster excavation cycles, effectively reducing costs. The system consists of a tubular steel bolts, which have been folded inward along its entire length to reduce their diameter, a tool for installation and a water injection pump at high pressure

Application

Hardy Prometheus are recommended for rock support in mining, tunnelling and civil engineering application, where a rock reinforcement of underground excavations and temporary ground control is needed

Features

  • Friction bolt with faceplate inserted, adjusted and expanded into the drill hole
  • Case at the top of the friction bolt with hole to inflate the bolt pressure water
  • Full view of the friction bolt
  • Face plate at the top of the friction bolt: no nuts necessary
  • Hardy Prometheus bolt also available with corrosion coating

 Hardy Prometheus

Advantages

  • Immediate full length support for faster excavation
  • Safe and easy installation
  • Excellent elongation properties
  • No need for specialized crew
  • Flexible for variations in drill diameter
  • Versatile bolting solution
  • Environmentally friendly installation
  • No torquing or retorquing
  • Hardy Prometheus bolts can be manufactured to any length (max. 20 ft)

Specifications

Type Standard (120 kN) MIDI (160 kN) Super (240 kN)
Recommended Inflate Pressure 300 Bar 240 Bar 300 Bar
Tube Thickness 2 mm 2 mm 3 mm
Original Diameter 41 mm 41 mm 54 mm
Bolt Diameter 26 mm 36 mm 36 mm
Hole Diameter 32-39 mm 43-52 mm 43-52 mm
Optimal Hole Diameter 35-38 mm 45-51 mm 45-51 mm
Breaking Load 120 kN 160 kN 240 kN
Minimum Elongation 10% 10% 10%
Minimum Yield Strength 90 kN 130 kN 210 kN